ALSA: Add subdevice_mask field to quirk entries

Introduced a new field, subdevice_mask, which specifies the bitmask to match with the given subdevice ID. Signed-off-by: Takashi Iwai <tiwai@suse.de>
git-mirror · Feb 9, 2009 · 8bd4bb7 · 8bd4bb7
1 parent 18e352e
commit 8bd4bb7
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Showing 2 changed files with 20 additions and 6 deletions.
diff --git a/include/sound/core.h b/include/sound/core.h
@@ -446,21 +446,33 @@ static inline int __snd_bug_on(int cond)
 struct snd_pci_quirk {
 	unsigned short subvendor;	/* PCI subvendor ID */
 	unsigned short subdevice;	/* PCI subdevice ID */
+	unsigned short subdevice_mask;	/* bitmask to match */
 	int value;			/* value */
 #ifdef CONFIG_SND_DEBUG_VERBOSE
 	const char *name;		/* name of the device (optional) */
 #endif
 };
 
-#define _SND_PCI_QUIRK_ID(vend,dev) \
-	.subvendor = (vend), .subdevice = (dev)
+#define _SND_PCI_QUIRK_ID_MASK(vend, mask, dev)	\
+	.subvendor = (vend), .subdevice = (dev), .subdevice_mask = (mask)
+#define _SND_PCI_QUIRK_ID(vend, dev) \
+	_SND_PCI_QUIRK_ID_MASK(vend, 0xffff, dev)
 #define SND_PCI_QUIRK_ID(vend,dev) {_SND_PCI_QUIRK_ID(vend, dev)}
 #ifdef CONFIG_SND_DEBUG_VERBOSE
 #define SND_PCI_QUIRK(vend,dev,xname,val) \
 	{_SND_PCI_QUIRK_ID(vend, dev), .value = (val), .name = (xname)}
+#define SND_PCI_QUIRK_VENDOR(vend, xname, val)			\
+	{_SND_PCI_QUIRK_ID_MASK(vend, 0, 0), .value = (val), .name = (xname)}
+#define SND_PCI_QUIRK_MASK(vend, mask, dev, xname, val)			\
+	{_SND_PCI_QUIRK_ID_MASK(vend, mask, dev),			\
+			.value = (val), .name = (xname)}
 #else
 #define SND_PCI_QUIRK(vend,dev,xname,val) \
 	{_SND_PCI_QUIRK_ID(vend, dev), .value = (val)}
+#define SND_PCI_QUIRK_MASK(vend, mask, dev, xname, val)			\
+	{_SND_PCI_QUIRK_ID_MASK(vend, mask, dev), .value = (val)}
+#define SND_PCI_QUIRK_VENDOR(vend, xname, val)			\
+	{_SND_PCI_QUIRK_ID_MASK(vend, 0, 0), .value = (val)}
 #endif
 
 const struct snd_pci_quirk *

diff --git a/sound/core/misc.c b/sound/core/misc.c
@@ -95,12 +95,14 @@ snd_pci_quirk_lookup(struct pci_dev *pci, const struct snd_pci_quirk *list)
 {
 	const struct snd_pci_quirk *q;
 
-	for (q = list; q->subvendor; q++)
-		if (q->subvendor == pci->subsystem_vendor &&
-		    (!q->subdevice || q->subdevice == pci->subsystem_device))
+	for (q = list; q->subvendor; q++) {
+		if (q->subvendor != pci->subsystem_vendor)
+			continue;
+		if (!q->subdevice ||
+		    (pci->subsystem_device & q->subdevice_mask) == q->subdevice)
 			return q;
+	}
 	return NULL;
 }
-
 EXPORT_SYMBOL(snd_pci_quirk_lookup);
 #endif